Re: swiotlb_alloc_coherent: allocated memory is out of range for device

At Thu, 23 Oct 2008 07:22:09 +0200,I wrote:> > > The current dma_alloc_coherent (asm-x86/dma-mapping.h) handles the gfp> > flags in the exact same way as the old dma_alloc_coherent> > (pci-dma.c). Neither sets GFP_DMA even if coherent_dma_mask is> > 24bits. The old code is fine because of the GFP_DMA retry> > mechanism. But if coherent_dma_mask is 24bits, there is no point to go> > into the GFP_DMA retry mechanism. We should use GFP_DMA in the first> > place.> > > > How about the following patch?> > I'll give it a try later (the machine is in my office).